package com.swpu.web.servlet;


import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.Method;

public class BaseServlet extends HttpServlet {

    //进行分发
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //获取请求路径
        String uri = req.getRequestURI();
        //获取最后一段路径
        int index = uri.lastIndexOf('/');
        String methodName= uri.substring(index+1);

        Class<? extends BaseServlet> cls = this.getClass();
        try {
            Method method = cls.getMethod(methodName, HttpServletRequest.class, HttpServletResponse.class);
            method.invoke(this,req,resp);
        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}
